EG512R-EA unused antennas

We do not use antennas 1 and 2 in this modem. We don’t need B1/B42/B43. What is the correct way to leave the antennas unconnected or install a 50 Ohm resistor?
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Hi Pavelsu,

if you don’t use only keep the RF circuit is not mounted by default. Thanks~

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Good afternoon. Are there any recommendations for combining antenna outputs? For example, I want to combine outputs 1 and 5. Is it acceptable to use an RF transformer? Are there any requirements for the transformer or a document with recommendations?

Do you mean you want to use a duplex to connect two RF ports to save one antenna? You can see that each of RF ports support middle band, so You cannot use duplex to separate them.